Mother-baby endoscope system consisting of hard mother-cholecystoscope and flexible baby-choledochoscope

Abstract

The present invention relates to a medical apparatus, in particular, a mother-baby endoscope system consisting of hard mother-cholecystoscope and flexible baby-choledochoscope which comprises a multi-channel cholecystoscope utilized as a mother endoscope and a flexible choledochoscope utilized as a baby endoscope; The flexible choledochoscope comprises a bendable front end, an instrument channel connected to the front end, an operating part and a light source host machine connected to said operating part via a cable, a video camera system, and a water supply equipment is also connected to the flexible choledochoscope for water supplying. The front end of baby endoscope passes through the instrument channel of the mother endoscope. The multi-channel cholecystoscope enters into gallbladder cavity, removes the gallstones in the gallbladder cavity and gallbladder walls, then the flexible choledochoscope enters into cystic duct, common bile duct, common hepatic duct, left and right hepatic duct in porta hepatis to perform treatments.

1 . A mother-baby endoscope system consisting of hard mother-cholecystoscope and flexible baby-choledochoscope, wherein said system comprises a multi-channel cholecystoscope utilized as mother endoscope and a flexible choledochoscope utilized as baby endoscope; said multi-channel cholecystoscope comprises a hard endoscope body, an instrument channel disposed at the hard endoscope body, an input port of an ocular, an input port of cold light source, a water inlet channel and a water outlet channel, and further comprises a light source host machine connected to said input port connector of cold light source of the mother endoscope, and a video camera system of the input port of the ocular; said flexible choledochoscope comprises a bendable front end, an instrument channel connected to said front end, an operating part, a light source host machine connected to said operating part via a cable, and a video camera system; a water supply equipment is also connected with said flexible choledochoscope for supplying water thereto; the front end of said baby endoscope passes through the instrument channel of said mother endoscope and wherein a bending portion is provided at an apex part of the front end of the flexible choledochoscope, and a bending angle of the bending portion is up to 180° in vertical direction, and up to 160° in horizontal direction, and a length of the bending portion is less than or equal to 25 mm. 
     
     
         2 . (canceled) 
     
     
         3 . The mother-baby endoscope system of  claim 1 , wherein the diameter of the apex part of the front end of the flexible choledochoscope is less than or equal to 3.0 mm, and the length of the apex part is 500 mm. 
     
     
         4 . The mother-baby endoscope system of  claim 3 , wherein the flexible choledochoscope can be either an electronic choledochoscope which adopts an electronic imaging optical system, or a fiber choledochoscope which adopts a fiber imaging optical system. 
     
     
         5 . The mother-baby endoscope system of  claim 1 , wherein the diameter of the front end of the hard endoscope body of the multi-channel cholecystoscope ranges from 6.5 to 7.5 mm, the length ranges from 200 mm to 220 mm. 
     
     
         6 . The mother-baby endoscope system of  claim 5 , wherein the diameter of instrument channel of the multi-channel cholecystoscope is more than or equal to 3.5 mm. 
     
     
         7 . The mother-baby endoscope system of  claim 6 , wherein said input port of the ocular of the multi-channel cholecystoscope utilized as a mother endoscope is at the angle of 135 degree to the central axis of hard endoscope body, which forms overall gun-shape; 2.8 mm optical lens are adopted by the optical system in the endoscope; There are three kinds of multi-channel cholecystoscopes classified by the optical lens having the field angle of 0 degree, 12 degree or 30 degree respectively. 
     
     
         8 . (canceled)